285行c语言代码实现简易贪吃蛇

前言

因为想做属于自己的游戏所以选择从事计算机行业，如今大三了，注意全在web和算法，游戏碰都没碰。
下面的代码是在观看一个贪吃蛇教程后自行制作，这是教程地址。自己在其基础上做了些改进，如添加背景音乐、校验键盘输入控制方向…等等。由于实力有限，代码有不足之处，还望多多包涵。

运行环境

vs2019（注：背景音乐路径地址请自行修改，这是下载地址）

源代码

#include
#include
#include
#include
#include 
#include
#pragma comment(lib,"winmm.lib")#define MAP_MODE "■" // 地图边缘样式
#define FOOD_MODE "■" // 食物样式
#define SNAKE_HEAD "○" // 蛇头
#define SNAKE_BODY "□" // 蛇身
#define MAP_WIDTH 60 // 地图宽度
#define MAP_HEIGHT 20 // 地图高度
#define BGM_LOCATION L"C:\\Users\\BestRiven\\source\\repos\\GluttonousSnake\\music.wav" // 背景音乐路径（注：去除""前的L，会导致播放音乐失效）void first_page();
void play_music();
void start_game();
void create_map();
void gotoxy(int x, int y);
void reback();
void create_foot();
void create_snake();
void move_snake();
int judge_statement();struct Food {int x;int y;int isCreate;
} food;struct Snake {int x[MAP_WIDTH * MAP_HEIGHT];int y[MAP_WIDTH * MAP_HEIGHT];int currentLen;int direct;
} snake;int main() {// 显示首页first_page();// 播放音乐play_music();// 准备开始游戏start_game();// 创建地图create_map();// 创建食物create_foot();// 创建蛇create_snake();// 移动蛇while (TRUE) {// 判断蛇的状态if (judge_statement()) {gotoxy(MAP_WIDTH / 2 - 6, MAP_HEIGHT / 2);printf("GAME  OVER!");gotoxy(MAP_WIDTH / 2 - 6, MAP_HEIGHT - 3);printf("您的得分是：%d", snake.currentLen - 3);reback();system("pause");exit(0); // 退出程序}// 如果食物未创建就创建食物if (food.isCreate == 0) {create_foot();}// 移动蛇move_snake();Sleep(300);}return 0;
}int judge_statement() {// 如果蛇头撞到蛇身就返回1for (int i = 1; i < snake.currentLen; i++) {if (snake.x[0] == snake.x[i] && snake.y[0] == snake.y[i]) return 1;}// 如果蛇头越界也返回1if (snake.x[0] < 1 || snake.x[0] > MAP_WIDTH - 1 || snake.y[0] < 1 || snake.y[0] > MAP_HEIGHT - 1) {return 1;}return 0;
}// 输入两个字符，判断是否方向相反
int judge_contrary(char c1, char c2) {if (c1 == c2) return 0;switch(c1) {case 'w':case 'W':return c2 == 's' || c2 == 'S';case 's':case 'S':return c2 == 'w' || c2 == 'W';case 'a':case 'A':return c2 == 'd' || c2 == 'D';case 'd':case 'D':return c2 == 'a' || c2 == 'A';}return 0;
}// 输入一个字符，判断是否合法
int judge_valid(char c) {switch (c) {case 'w':case 'W':case 's':case 'S':case 'a':case 'A':case 'd':case 'D':return 1;}return 0;
}void move_snake() {char cur_direct = snake.direct;if (_kbhit()) { // 监听键盘输入fflush(stdin);cur_direct = _getch();}// 先判断输入是否合法,并且方向和原方向不相反，都满足就更新if (judge_valid(cur_direct) && !judge_contrary(snake.direct,cur_direct))snake.direct = cur_direct;// 擦掉蛇尾(刚生成的蛇尾需要过滤if (snake.x[snake.currentLen - 1] != 0) {gotoxy(snake.x[snake.currentLen - 1], snake.y[snake.currentLen - 1]);printf("  ");}// 打印蛇身for (int i = snake.currentLen - 1; i > 0; i--) {snake.x[i] = snake.x[i - 1];snake.y[i] = snake.y[i - 1];gotoxy(snake.x[i], snake.y[i]);printf(SNAKE_BODY);}// 根据方向更新蛇头switch(snake.direct) {case 'w':case 'W':snake.y[0]--;break;case 's':case 'S':snake.y[0]++;break;case 'a':case 'A':snake.x[0] -= 2;break;case 'd':case 'D':snake.x[0] += 2;break;}// 打印蛇头gotoxy(snake.x[0], snake.y[0]);printf(SNAKE_HEAD);// 如果蛇头和食物重合，那么蛇长++if (snake.x[0] == food.x && snake.y[0] == food.y) {snake.currentLen++;// 设置食物未创建food.isCreate = 0;}reback();
}void create_snake() {// 初始化变量snake.x[0] = MAP_WIDTH / 2;snake.y[0] = MAP_HEIGHT / 2;snake.currentLen = 3;snake.direct = 'a';// 画蛇头gotoxy(snake.x[0], snake.y[0]);printf(SNAKE_HEAD);// 画蛇身for (int i = 1; i < snake.currentLen; i++) {snake.x[i] = snake.x[i - 1] + 2;snake.y[i] = snake.y[i - 1];gotoxy(snake.x[i], snake.y[i]);printf(SNAKE_BODY);}reback();
}void create_foot() {// 设置食物已创建food.isCreate = 1;int flag = 1;while(flag == 1){// 产生随机数srand(time(NULL));// 生成随机食物food.x = rand() % (MAP_WIDTH - 1) + 2;if (food.x&1) continue;food.y = rand() % (MAP_HEIGHT - 1) + 1;flag = 0;// 判断生成的随机食物是否和蛇身冲突for (int i = 0; i < snake.currentLen; i++) {if (food.x == snake.x[i] && food.y == snake.y[i]) {flag = 1;break;}}}gotoxy(food.x, food.y);printf(FOOD_MODE);reback();
}void create_map() {// 打印上下for (int i = 0; i <= MAP_WIDTH; i++) {gotoxy(i, 0);printf(MAP_MODE);gotoxy(i, MAP_HEIGHT);printf(MAP_MODE);}// 打印左右for (int i = 1; i < MAP_HEIGHT; i++) {gotoxy(0, i);printf(MAP_MODE);gotoxy(MAP_WIDTH, i);printf(MAP_MODE);}reback();
}void first_page() { // 显示封面printf("\t\t欢迎试玩《贪吃蛇》\n\n");printf("开始游戏：\t按空格开始游戏\n");printf("控制方向：\tw a s d控制蛇的方向\n\n\n\n");
}void play_music() {PlaySound(BGM_LOCATION, NULL, SND_FILENAME | SND_ASYNC);
}void start_game() {// 读入空格进入游戏	while (' ' != _getch());// 暂停音乐PlaySound(NULL, 0, 0);// 清屏system("cls");
}void gotoxy(int x, int y) { // 系统辅助函数COORD pos = { x , y };HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);SetConsoleCursorPosition(hOut, pos);
}// 光标归位
void reback() {gotoxy(MAP_WIDTH + 8, 0);
}

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